README

Table of Contents

• Problem statement
• Parameters
• Initial Solution
• Optimized Solution
• Building and Integrating

Problem statement

There are 3 "cellular on wheels (COWs) portable base stations, each of which can drive a linear scan antenna array of up to 8 elements. The layout consists of 12 non-VIP spectator zones and 3 VIP spectator zones. The goal is to provide at least 24 dB of SINR ("SNR") of signal quality to all clients involved in the simulation. See wiki/original_problem.pdf for more info.

More details on the linear scan antenna array as follows.

In the project the scan angles varies between -90 and +90 degrees and each COW is placed at an orientation of 0 degrees (theta) or facing East, and theta-C angle is used to convey the scan angle as seen in the image.

Parameters

• one frequency channel of 20 MHz wide, f-center = 1900 MHz
• each COW has a mast that can mount and linearly scan up to 8 antennas driven from a common downlink modulator signal.
• each antenna has hx = 20cm and hy = 40 cm.
• overall width of the array cannot be more than 240 cm.
• each of the modulated downlink streams can be drive with power from -30 dBm to +30 dBm in 1 dB steps between timeslots

Solution

Initial solution in Matlab

Initial proposal and source code along with optimizations have been made in wiki/possible_solution.pdf. Some of the visual effects of using linear scan antenna array can be found below:

Optimized Solution

TODO

Building and Integrating

Default is release build with -O3 optimization

mkdir build
cd build
cmake ..
cmake --build .

Debug build w/ debug symbols

Change cmake .. to cmake -DCMAKE_BUILD_TYPE=Debug ..